[CentOS] Text file manipulation in CentOS?

[hadi motamedi]

>
> If I understand correctly, you can pipe your output to: `awk '{a=$1} {if
> (a > 3)   print a}''. `a' is awk variable. `$1' is first column of awk
> input so you probably need to change it.
>
>
> Thank you for your message . Yes , you are right . I really need to filter
out that CallId with number of occurances say less than three. But your
command is not getting through on my centos . Please correct me.
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